Improved Indomitable

Hardy and resilient, you gain the following benefits:

• Increase your Wisdom score by 1, to a maximum of 20.

• Beginning at 9th level, you can reroll a saving throw that you fail. If you do so, you must use the new roll. You can use this a number of times per day equal to your Wisdom Modifier. 

• You can use this feature a number of times equal to your Wisdom Modifier +1 starting at 13th level and Wisdom Modifier +2 between long rests starting at 17th level.